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October 15th, 2021 13:00
OptiPlex 7070 SFF - Replacing the PSU
Okay folks - hope everyone is well. I've got a new-to-me media PC available which is an Optiplex 7070 SFF with a 240w PSU - according to the gentleman who currently owns it. I have a LP Yeston Radeon RX550 (http://www.yeston.net/product/details/234/272) that I'd like to be able to use in it. I currently have an older Shuttle XPC with 300w PSU but it was locking up occasionally when I had the Radeon card in there. Using onboard video - thing is solid. I am thinking the PSU wasn't really enough to power things along.
So question for the Dell Power experts (in no order) - @DELL-Chris M , @speedstep , @redxps630
I'd like to get a hold of one of the following PSUs for the Optiplex 7070 SFF using 6+4 pins and would like some confirmation/advice/thoughts:
I've been scouring the multiple threads and seen different viewpoints from folks on the ability to use different higher rated PSUs on lower tier models...but hoping to find something specific to this need.
This was a good, but short thread too, shoutouts to @stevan1990 @JohnSnow : https://www.dell.com/community/Optiplex-Desktops/Upgrade-7070SFF-Power-Supply/m-p/7681650
speedstep
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October 28th, 2021 18:00
@Ytsejamer1
Please press the blue Accept as Solution button below if this post answers your question.
RX550 from Yeston is single slot low profile.
http://yeston.net/product/details/234/272
https://www.amazon.com/dp/B09BMQ7YBX
Getting this model with low profile bracket is hard sometimes.
https://www.ebay.com/itm/182876880703
Full size bracket can be modified to work fine in low profile case with pliers and tin snips.
Legit Yeston cards are $200 or more. Beware of "deals" for $59 to $99 range which may be fake.
Got mine from amazon. Its based on the Lexa vs Baffin Video core. So its 50W vs 75W TDP.
https://www.amd.com/en/support/previous-drivers/graphics/radeon-500-series/radeon-rx-500-series/radeon-rx-550
Yeston is Legit and should not be lumped in with fake video cards.
http://yeston.net/index/index/english
Ytsejamer1
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October 31st, 2021 11:00
Yep @speedstep - that's what I've got. It had both full size and LP adapter. Color quality is really nice. Looking forward to putting it back into use once I get my hands on this 7070. Cheers!
Ytsejamer1
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November 4th, 2021 05:00
Welp - good news and bad news. Good news first. I didn't fry the my 'new-to-me' system after installing the 460w PSU. Bad news - it doesn't fire up.
The new PSU has white 6-pin labeled P1. I assume this goes in the white 6-pin connector on the motherboard.
There's also the following connectors:
I tried using the white 6-pin and the white 4-pins (one at a time of course). The system wouldn't fire up.
As for the Yeston card, it fit perfectly using the LP adapter and so far is running fine on my 200w.
speedstep
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November 4th, 2021 07:00
@Ytsejamer1 Please press the blue Accept as Solution button below if this post answers your question.
Six pin connectors will FRY the system.
GPU connectors are NOT Cpu connectors. Using incorrect power supply can FRY and DIE everything including destroying CPU, Ram, HDD, Motherboard, etc.
7070 DOES NOT use the same PSU as G5 7080 XPS 8940 so there is no 460W option.
@DELL-Chris M would have information on what power supplies work and their part numbers.
Ytsejamer1
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November 4th, 2021 08:00
I wasn't trying to use the PCIe black power connectors to the motherboard.